Refactor production and stock tests to remove UOM dependency

- Updated production.spec.ts, stock-adjustments.spec.ts, and stock-transfers.spec.ts to eliminate UOM references in API seeder and test cases.
- Adjusted ApiSeeder methods to remove UOM parameters from stock receiving and production template creation.
- Revised documentation to reflect changes in UOM handling, emphasizing that stock is counted in base UOM only.
- Introduced new enums for MeasureUnit and StageQtyUnit to clarify content size and stage input quantities.
- Implemented ItemContent service to validate and normalize content sizes.
- Updated smoke tests to validate production stage inputs expressed in content units, ensuring correct consumption calculations.
- Modified frontend UOM label handling to reflect the removal of per-line UOMs in document lines.

Frontend/erp-system/lib/api/items.ts

@@ -10,8 +10,6 @@ import {
   TrackingMode,
   UpdateItemReorderRequest,
   UpdateItemRequest,
-  UpdateUomConversionsRequest,
-  UpdateUomConversionsResponse,
 } from "@/types/master-data"
 
 export interface ListItemsParams {
@@ -59,11 +57,4 @@ export const itemsApi = {
       body: request,
     })
   },
-
-  updateUomConversions(itemId: number, request: UpdateUomConversionsRequest): Promise<UpdateUomConversionsResponse> {
-    return apiRequest<UpdateUomConversionsResponse>(`/items/${itemId}/uom-conversions`, {
-      method: "PUT",
-      body: request,
-    })
-  },
 }